Steam-boiler.



P. McLOON.

STEAM BOILER. APPLICATION FILED JAN.2 2, 1912.

F0 1 9 11 00 1 R p A m .m m a P s SHEETS-SHEET 1.

THE NORRIS PETERS 60., FHoTO-LITHQ, WASHINGTON, D. C.

P. McLOON.

STEAM BOILER.

APPLICATION FILED IAN-2'2, 1912.

Patented Apr" 13, 19115.

3 SHEETS-SHEET 2.

THE NORRIS PETERS CO. PIHOTD-LITHO" WASHINGTON, D. c.

Patented Apr. 13, 1915.

' a SHEETSSHEE T a Maw 02 fiZfiZb/EMOOIZ,

\ W A" n m A P M LOON STEAM BOILER.

PPLICATION FILED JAN.

swans anti T TTE PATRICK MCLOON, OF GLENGOE, MISSOURI, ASSIGNOR OFONE-HALF T0 PHILIP J. DAUERNHEIM, OF ST. LGUIS, MISSOURI.

STEAM-BOILER.

menses.

Specification of Letters Patent.

Patented Apr. 13, 1915.

To all whom it may concern:

Be it known that T, PATRICK MoLooN, a citizen of the United States, andresident of Glencoe, St. Louis county, Missouri, have invented certainnew and useful Improvements in Steam-Boilers, of which the following isa specification containing a full, clear, and exact description,reference being had to the accompanying drawings, forming a part hereof.

My invention relates to an improved steam boiler and consists in thenovel construction hereinafter described and pointed out in the annexedclaim.

The object of my invention is to provide a steam boiler the furnace ofwhich shall effectually operate to consume the smoke, and which steamboiler shall be simple in construction and economical in operation.

In the drawings Figure 1 is a sectional end elevation of my improvedsteam boiler and its setting; Fig. 2 is a sectional side elevation ofsame; Fig. 8 is a sectional plan view in detail showing the constructionof the fire openings formed in the water legs of he boiler; and Fig. 4is a sectional side elevation of the boiler and its setting, togetherwith the steam drums.

The boiler preferably has a cross section in the form of an inverted Uhaving the opposite water legs 1, the upper edges of which are connectedby a water arch 2, the inner and outer walls of both water legs andwater arch being connected and strengthened by the usual stay bolts 3.

The construction just described produces a boiler having a large firebox 1- the opposite ends of which are closed by the furnace walls.

The front wall 5 is built within the front of the said fire box, and therear wall 6 is built within the rear of the fire box thereby closing thefront and rear of the fire box except that the said front wall isprovided with one or more fire doors 7, one or more ash pit doors 8, andthe rear wall is also provided with one or more fire doors 7 and one ormore ash pit doors 8, so that the fire box may be fired from eitherfront or rear or both front and rear.

9 indicates furnace grate bars, which may be of any preferredconstruction and supported at their outer ends by the fire box endwalls, and at their inner ends by suitable T-beams 10 or other commondevices which extend laterally across the interior of the fire box.

The water arch 2 is provided at its opposite ends with the usual manholes 11 for the purpose of enabling the arch to be cleaned andrepaired.

12 indicates a series of fire openings formed in the opposite water legs2 in a plane above the grate bars 9 and in a plane a distance below thewater arch 2, for permitting the egress of the smoke and flame from thefire box.

The boiler above described may be provided with any common form ofboiler setting and in the present instance I have shown the boiler setin brick work or other masonry arched above the water arch 2 as shown at13 and which provides a comparatively wide space which is of invertedtJ-shape in cross section and extends completely around the exterior ofthe boiler at a uniform. distance therefrom, and thereby providing acombustion chamber 14: exterior of the boiler into which passes smokeand flame from the fire openings 12.

15 indicates the smoke stack which is placed at the top of the archedwall 13 with its interior in communication with the combustion chamber14:.

16 and 17 indicate a pair of steam drums which are located as shown inFig. 4-, in the same horizontal plane, but also in a plane aconsiderable distance above the boiler and each of said drums isconnected to the boiler by means of circulatory pipes 18 and 19, all ofwhich pipes are connected to the bottom of said drums.

The lower ends of the circulatory pipes 18 are connected to thewater-arch 2, so that the water and steam will pass upwardly throughsaid pipes into said drums, while the pipes 19 have their lower endsconnected to the lower portion of the waterlegs 1, so that the waterfrom the said steam drums may pass downwardly from the said pipes 19 andenter said water-legs.

The numeral 20 indicates the steam pipe which is connected to the steamspace of each of the steam drums 16 and 17 for the purpose of permittingthe steam to be carried to a steam engine or other apparatus designed toutilize the steam.

The operation is as follows: The smoke and flame from the fire-box apass upwardly into the space immediately beneath the Water-arch 2, wherethey thoroughly commingle, and then they are drawn downwardly and passout of the fire-box through the fire-openings 12 into the exteriorcombustion chamber 14,,where the smoke is thoroughly consumed. Theproducts of combustion make their exit from the combustion chamber 14through the smokestack 15. A common water line, (as indicated by thedotted lines in Fig. 4) is of course maintained in each of the steamdrums 16 and 17. .The pipes 18 are purposely made larger than the pipes19, so that the steam and water passing upwardly from the boiler intothe steam drums may meet with as little frictional resistance aspossible.

My improved boiler possesses certain advantages which are readilyapparent, and I found in practice that it effectually consumes the smokewhen bituminous coal is burned in the furnace.

The said steam drums 16 and 17 might also be called separating drums forthe reason that the steam is therein separated Copies of this patent maybe obtained for five cents each, by addressing the each of the waterlegs having openings at intervals therethrough, placing the fire zone ofthe boiler in communication with both sides of the space between theboiler and setting, substantially as shown and for the purposes stated.

In testimony whereof, I have signed my name to this specification, inpresence of two subscribing witnesses.

PATRICK McLOON. Witnesses E. L. VVALLACE, JOHN C. HIGDON.

Commissioner of Patents,

Washington, D. G.

